Combined heater and oven



2 Sheets-Sheet 1.

(No Model.)

J. H. LINDSAY.

COMBINED HEATER AND OVEN.

. No. 278,567. Patented May 2 ,1883.

WITNESSES;

ATTORNEYS.

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mi Model.)

2 Sheets-Sheet 2. J. H. LINDSAY.

COMBINED HEATER AND OVEN.

Patented May 29,1883,

- WITNESSES: mvm'wm M BY m Anon Myst n, PETERS, M Walhinflm a c UNITED STATES PATENT OFFICE.

JOSEPH H. LINDSAY, OF FREELAND, PENNSYLVANIA.

COMBINED HEATER AND OVEN.

SPECIFICATION-forming part of Letters Patent No. 278,567, dated May 29, 1883.

Application filed September 28, 1882. (No model.)

e which the following is a full, clear, and exact description.

The invention consists in a combined heater and oven formed of a cylinder or drum containing afire-box provided with a dome,

through which drum and fire-box an air-tube passes, whereby the air passing through this tube will be heated. The heated air in the drum is conducted into this tube by-pipes extending from the top of the drum into this tube.

Reference is to be had to the accompanying r drawings, forming'part of this specification,

in which similar letters of reference indicate corresponding parts in both the figures.

Figure 1 is a-t'ront elevation of-myimproved heater and oven.- Fig. 2 is a cross-sectional elevation of the same from front to rear.

A vertical drum or cylinder, A, made of cast or sheet iron, is provided with a centrall cast-iron tube or pipe, B, extending through;

the drumfrom top to bottom and projecting an ash-pit, E, between the bottom of the fire box and the bottom of the drum A. The grate F rests on auaunular projection or flange, a,

of a ,short cylinder, Gr, surrounding the pipe w B in the ash-pit. Theash-pit is provided with a part of the drum A, and is provided with a door, N. Below the oven a chamber 0. is formed and provided with an apertured bottom, P, the outer end of this chamber being closed by a sliding gate, Q. It the heater or oven becomes overheated, the sliding door or gate Q is opened to let the surplus heat out of the chamber 0. The curved smoke-pipes It conduct the smoke and products of combustion from the upper part of the dome D into the chimney-pipe S, projecting from the rear and top of the drum A. From the top of the drum A curved pipes T conduct the heated airin the drum 'A into the pipe B. The air that passes through the pipe B will be heated, and to this heated air is added the air that is heated in the drum A, and which passes through the pipes T into the pipe B. The heated air in the pipe B can beconducted into several whatI claim as new, and desire to secure by Letters Patent, is t 1. In a combined heater and oven, the combination, with the cylinder or drum A, of the fire-box U, the dome D, the pipe B, passing vertically through the drum and fire-box, and the pipes T, passing from the top of the drum A to the upper end of the pipe B, substantially as herein shown and described, and for the purpose set forth.

2. In a combined heater aud'oven, the combination, with the cylinder or drum A, of the fire-box O, the dome D, the oven M, the hotair chamben O, provided with an apertured bottom, and the apertured gate Q, substantially as herein shown and described, and for the purpose set forth.

Josh. LINDSAY.

Witnesses:

THoMAs'MUNRoE, JOHN TURNBACH. 

